Well, I've never made a real waterblock before other than an endcap block or something involving spare aluminum and epoxy so I think the cheaper copper might be good for me to practice with. Do you have a link to a design I can print out like one of #Rotor's designs?
EDIT: Found this guide with some printouts:
http://www.madshrimps.be/?action=get...=78&howtoID=34